This was formed by distorting an image of a background on Pixabay.
Source Firkin
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Used the 6th circle pattern designed by Viscious-Speed to create a print that can be used for card making or scrapbooking. Save as a PDF file for the best printing option.
Source Lovinglf
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
8 by 8 pixels, and just what the title says.
Source pixilated
A grayscale fabric pattern with vertical lines of stitch holes.
Source V. Hartikainen
Subtle scratches on a light gray background.
Source Andrey Ovcharov
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
This seamless background image should look nice on websites. It has a dark blue gray texture with vertical stripes, it tiles seamlessly and, like all of the background images here, it's free. So, if you like it, take it!
Source V. Hartikainen
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin